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Problem Description
C Country T customers open and test the external loopback function of OSN3500 SSN4SLQ16 single board:
Scenario 1: SSN1SLQ16 single board connects to the meter first and then external loopback, los disappears, no alarms on the meter
SSN4SLQ16 single board connects to the meter first and then external loopback, los disappears, no alarms on the meter
Scenario 2: SSN1SLQ16 single board connects to the meter first and then external loopback, los disappears, no alarms on the meter SSN4SLQ16 singleboard connects tothe meterfirst, los disappears, HPUNEQ alarms on the meter OSN3500 SSN4SLQ16Single Board Externalloopbackmeter, los disappears, no alarms on meter
SSN4SLQ16 veneer board loops back externally first then connects to meter, los disappears, HPUNEQ alarm reported on meter
OSN3500 device version is 5.21.18.44, SSN4SLQ16 version is 7.85, SSN1SLQ16 version is 7.16.
Scenario 1: SSN1SLQ16 single board connects to the meter first and then external loopback, los disappears, no alarms on the meter
SSN4SLQ16 single board connects to the meter first and then external loopback, los disappears, no alarms on the meter
Scenario 2: SSN1SLQ16 single board connects to the meter first and then external loopback, los disappears, no alarms on the meter SSN4SLQ16 singleboard connects tothe meterfirst, los disappears, HPUNEQ alarms on the meter OSN3500 SSN4SLQ16Single Board Externalloopbackmeter, los disappears, no alarms on meter
SSN4SLQ16 veneer board loops back externally first then connects to meter, los disappears, HPUNEQ alarm reported on meter
OSN3500 device version is 5.21.18.44, SSN4SLQ16 version is 7.85, SSN1SLQ16 version is 7.16.
Alarm messagesHP_UNEQ
Processing1. All 10PCS SSN4SLQ16 purchased by the customer have this problem, ruling out a single board failure.
2. It is confirmed by R&D that the problem is caused by hardware defects. The problem can be avoided by connecting the meter or pre-configuring the services on SSN4SLQ16 before the outer loopback.
When the SSN4SLQ16 board is configured with the service, first loopback and then connect the meter, after the los disappears, there is no alarm on the meter.
3. R&D plans to release R10 version at the end of June 2011 to solve this problem.
2. It is confirmed by R&D that the problem is caused by hardware defects. The problem can be avoided by connecting the meter or pre-configuring the services on SSN4SLQ16 before the outer loopback.
When the SSN4SLQ16 board is configured with the service, first loopback and then connect the meter, after the los disappears, there is no alarm on the meter.
3. R&D plans to release R10 version at the end of June 2011 to solve this problem.
Root Cause 1、Single board failure
2、Software problem
2、Software problem
Recommendations and SummarySSN1SLQ16 veneer is out of production, customers need to purchase SSN4SLQ16 veneer instead.
This problem has no effect on the operation of the current network, only need to tell the customer to pay attention to it during the test.
This problem has no effect on the operation of the current network, only need to tell the customer to pay attention to it during the test.
END
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